118 lines
3.3 KiB
Text
118 lines
3.3 KiB
Text
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# debug.nas -- debugging helpers
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#
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# debug.dump(<variable>) ... dumps full contents of variable
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# debug.backtrace([<comment:string>]} ... writes backtrace with local variables
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# (similar to gdb's "bt full)
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# debug.exit() ... exits fgfs
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#
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# debug.bt ... abbreviation for debug.backtrace
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if (caller(0)[2][1] != ":") { # poor man's Unix test
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_c = func(color, s) { "\x1b[" ~ color ~ "m" ~ s ~ "\x1b[m" }
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} else {
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_c = func(dummy, s) { s } # no Unix => no colors :-P
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}
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_title = func(s) { _c("33;42;1", s) } # backtrace header
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_section = func(s) { _c("37;41;1", s) } # backtrace frame
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_nil = func(s) { _c("32", s) } # nil
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_string = func(s) { _c("31", s) } # "foo"
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_num = func(s) { _c("31", s) } # 0.0
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_bracket = func(s) { _c("", s) } # [ ]
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_angle = func(s) { _c("", s) } # < >
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_type = func(s) { _c("33", s) } # func ghost
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_proptype = func(s) { _c("34", s) } # BOOL INT LONG DOUBLE ...
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_brace = func(s) { _c("", s) } # { }
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_path = func(s) { _c("36", s) } # /some/property/path
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_keyword = func(s) { _c("35", s) } # me parents
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_varname = func(s) { _c("1", s) } # variable_name
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_dump_prop = func(o) {
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var attrib =
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(!o.getAttribute("read") ? "r" : "") ~
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(!o.getAttribute("write") ? "w" : "") ~
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(o.getAttribute("trace-read") ? "R" : "") ~
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(o.getAttribute("trace-write") ? "W" : "") ~
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(o.getAttribute("archive") ? "A" : "") ~
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(o.getAttribute("userarchive") ? "U" : "") ~
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(o.getAttribute("tied") ? "T" : "");
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var cat = "(" ~ _proptype(o.getType()) ~ (size(attrib) ? "; " ~ attrib : "") ~ ")";
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_path(o.getPath()) ~ "=" ~ _dump(o.getValue()) ~ " " ~ cat;
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}
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_dump_var = func(v) {
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if (v == "me" or v == "parents") {
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return _keyword(v);
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} else {
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return _varname(v);
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}
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}
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_dump = func(o) {
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var t = typeof(o);
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if (t == "nil") {
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return _nil("nil");
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} elsif (t == "scalar") {
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return num(o) == nil ? _string('"' ~ o ~ '"') : _num(o);
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} elsif (t == "vector") {
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var result = _bracket("[") ~ " ";
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forindex (var i; o) {
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result ~= (i == 0 ? "" : ", ") ~ _dump(o[i]);
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}
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return result ~ " " ~ _bracket("]");
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} elsif (t == "hash") {
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if (contains(o, "parents") and typeof(o.parents) == "vector"
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and size(o.parents) == 1 and o.parents[0] == props.Node) {
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return _angle("<") ~ _dump_prop(o) ~ _angle(">");
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}
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var k = keys(o);
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var result = _brace("{") ~ " ";
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forindex (var i; k) {
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result ~= (i == 0 ? "" : ", ") ~ _dump_var(k[i]) ~ " : " ~ _dump(o[k[i]]);
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}
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return result ~ " " ~ _brace("}");
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} else {
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return _angle("<") ~ _type(t) ~ _angle(">");
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}
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}
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dump = func(o = nil) { print(_dump(o != nil ? o : caller()[0])) }
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backtrace = func(desc = nil, l = 0) {
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var v = caller(l);
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if (v == nil) {
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return;
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}
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if (l == 0) {
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var d = desc == nil ? "" : " '" ~ desc ~ "'";
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print("\n" ~ _title("\n## backtrace" ~ d ~ " ##"));
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} else {
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print(_section(" called from: " ~ v[2] ~ ", line " ~ v[3] ~ ": "));
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dump(v[0]);
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}
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backtrace(nil, l + 1);
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}
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bt = backtrace;
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exit = func { fgcommand("exit", props.Node.new()) }
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if (getprop("/sim/logging/priority") != "alert") {
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_setlistener("/sim/signals/nasal-dir-initialized", func { print(_c("32", "** NASAL initialized **")) });
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_setlistener("/sim/signals/fdm-initialized", func { print(_c("36", "** FDM initialized **")) });
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}
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